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Use kmem_alloc_nofault() rather than kmem_alloc_pageable() in pmap_mapdev().

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See revision 1.140 of kern/sys_pipe.c for a detailed rationale.

Submitted by:	tegge
This commit is contained in:
Alan Cox 2003-08-02 19:26:09 +00:00
parent 889109df01
commit e53f32ace5
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=118365
4 changed files with 4 additions and 4 deletions
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2
sys/amd64/amd64/pmap.c
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@ -2820,7 +2820,7 @@ pmap_mapdev(pa, size)
return ((void *)PHYS_TO_DMAP(pa));
offset = pa & PAGE_MASK;
size = roundup(offset + size, PAGE_SIZE);
va = kmem_alloc_pageable(kernel_map, size);
va = kmem_alloc_nofault(kernel_map, size);
if (!va)
panic("pmap_mapdev: Couldn't alloc kernel virtual memory");
pa = pa & PG_FRAME;

2
sys/powerpc/aim/mmu_oea.c
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@ -2313,7 +2313,7 @@ pmap_mapdev(vm_offset_t pa, vm_size_t size)
return ((void *) pa);
}
va = kmem_alloc_pageable(kernel_map, size);
va = kmem_alloc_nofault(kernel_map, size);
if (!va)
panic("pmap_mapdev: Couldn't alloc kernel virtual memory");

2
sys/powerpc/powerpc/mmu_oea.c
View File

@ -2313,7 +2313,7 @@ pmap_mapdev(vm_offset_t pa, vm_size_t size)
return ((void *) pa);
}
va = kmem_alloc_pageable(kernel_map, size);
va = kmem_alloc_nofault(kernel_map, size);
if (!va)
panic("pmap_mapdev: Couldn't alloc kernel virtual memory");

2
sys/powerpc/powerpc/pmap.c
View File

@ -2313,7 +2313,7 @@ pmap_mapdev(vm_offset_t pa, vm_size_t size)
return ((void *) pa);
}
va = kmem_alloc_pageable(kernel_map, size);
va = kmem_alloc_nofault(kernel_map, size);
if (!va)
panic("pmap_mapdev: Couldn't alloc kernel virtual memory");